Left ventricular strain, arch angulation, and velocity-time integral ratio improve performance of a clinical pathway for fetal diagnosis of neonatal coarctation of the aorta.

The incorporation of novel metrics added diagnostic value to our clinical pathway for fetal CoA with higher specificity than the previous high-risk criteria. The incorporation of these metrics into the evaluation of fetuses at moderate- or high-risk for surgical CoA may improve prenatal counseling, allow for more consistent surgical planning, and ultimately optimize hospital resource allocation.